:root {
    --background-color: #2c3e50;
    --border-color: #7591AD;
    --text-color: #34495e;
    --color1: #ec3e27;
    --color2: #fd79a8;
    --color3: #0984e3;
    --color4: #00b894;
    --color5: #fdcb6e;
    --color6: #e056fd;
    --color7: #F97F51;
    --color8: #BDC581;
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
}

body {
    width: 100vw;
    height: 100vh;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Montserrat', sans-serif, Arial, 'Microsoft Yahei';
}

.channel {
    position: absolute;
    width: 80%;
    text-align: center;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -200px);
    font-size: 30px;
    font-weight: bold;
    color: #fff;
    z-index: 999;
}

.container {
    position: relative;
    width: 100vw;
    height: 100vh;
    background-color: #000;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 800px;
    perspective-origin: left;
    transform-style: preserve-3d;
}

.line {
    position: absolute;
    width: 200px;
    height: 3px;
    border-radius: 3px;
    /* background-color: #fff; */
    background-image: linear-gradient(to right, var(--color), #ffffff50, transparent);
    animation: down 1s linear infinite both;
    animation-delay: calc(var(--d) * 0.3s);
}

.line::before,
.line::after {
    position: absolute;
    content: "";
    width: inherit;
    height: inherit;
    background-image: inherit;
}

.line::before {
    filter: blur(5px);
}

.line::after {
    filter: blur(10px);
}

@keyframes down {
    0% {
        transform: 
        translateY(calc(var(--z) * 60px)) 
        translateZ(calc(var(--z) * 100px)) 
        rotate(-45deg)
        translateX(calc(var(--x) * 100px)) 
        ;
    }
    100% {
        transform: 
        translateY(calc(var(--z) * 60px)) 
        translateZ(calc(var(--z) * 100px)) 
        rotate(-45deg)
        translateX(calc(var(--x) * -100px)) 
        ;
    }
}